Top logo is "titleimage" Style Property, use the search box for easy find.
However footer logo is in the footer template. The easiest way is to keep the naming, just save the same name in the folder.
Style background is "doc_background" style properties. For styles that not come with full photo background but you wanted to change to a big photo background, you need to paste this code on top of additional.css
style manager> edit templates> css templates> additional.css
if you want to use repeating pattern background you don't need to do above.html{background-size:100% 100%;background-attachment:fixed;}
Footer Custom Templates - You need first to upload the vbulletin-plugins.xml as in instructions step no2, otherwise it will be broken. There are 2 left columns and one right column. It is easy to change.
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